Drill-oiler.



H. DAVIS.

DRILL OILER.

APPLICATION FILED sBP1'.24,1913,

tid

HENRY DAVIS, 0F NASHVILLE, TENNESSEE.

DRILL-OILER.

Speoication of Lettera Patient.

Application led September 24, 1918., lSerial No. 791,572.

To all whom it may concern) Be it known that I, HENRY DAVIS, a citizen of the United States', residing'at Nashville, in the county of Davidson, State of Tennessee, have invented certain new and useful improvements in Drill-Oilers; and ll do hereby declare the following to be a full, clear, and exact description of the invention, such as Will enable others skilled in the art to which it appertains to make and use the same.

rl`his invention relates to improvements in attachments for metal drills, and particularly to an oiling attachment for the drill bits therefor.

The principal object of the invention is to provide a simple oiling device which can be readily attached to the ordinary metal drilling or borin machine to keep the bit well supplied wit lubricant.

Another object is to provide a lubricating device `which is readily attachable to the ordinary drilling machine frame and which can be thrown out of position when changing bits.

A still further object is to provide an oiling device ot' this character which will move up and down with the drill bit as the bit progresses through the work.

@ther objects and advantages will be apparent from the following description, when taken in connection withy the accompanying drawings.

ln the drawings: Figure is a side elevation of a portion ot a drilling machineA showing m oiling attachment thereon. Fig. 2 is an en elevation. Fig. 3 is an enlarged detail of the hinged joint.V Fig. 4 is a detail sectional view of the spout or nozzle ot the oil conveying pipe.

Referring particularly to the accompanying drawings, 10 represents the up'rightfpost or standard of the drilling machine which carries the frame l sup orting the usual driving shaft l2, thebits aft 13 and gearing ll. @n the lower end of the bit shaft is a drill chuck 15 which carries the drill bit lo. Secured to the post l0 by means of the clamps l? is a vertical member 18 to the upper end of which is adjustably securedan outwardly extending bar 19. Connec'tedv to the outer end of the bar by means ont the hinged joint 20 is a clip21, this clip being secured bythe set screw 21 to the vertical pipe 22 which connects at its upper end with the oil tank 23. Connected to the 'lower end of the pipe 22 by means bf an elbow 24 is a horizontally extending pipe 25. In the' end of this pipe is secured to the casing of a'turning lug valve 2G a discharge nozzle 27 extendlng from the opposite side thereof and in line with the pipe. This nozzle 27 is arranged to engage against the drill bit 16 so as to permit oil to flow therefrom to the bit when the valve is opened. When it is desired to release the nozzle from the bit, as when changing bits, the tank and depending pipe are first slipped up through the clip 21 and then swung outwardly on the hinged joint 20 as will be readily apparent from an inspection of the drawings. Secured to the depending pipe 25 and extending toward the drill chuck isa supporting member Q9, the free end of which rests on the upper shoulder of the chuck and supports the device in proper position. Thls member is firmly attached to the pipe 22, by means of the set screw 29', and supportsthe oiling device so that the stem of the valve always. engages the same part yot' the drill. bit, and moves up and down with the bit, the connection at 21 permits the pipe 22 to slide easily therethrough when the drill is moving up or down.

It will thus be seen that I have provided a simple oiling device which can be readily attached to an ordinary drill frame and which will always be in contact with the drill bit to keep the bit well oiled.

What is claimed is l. An oiling device for a drill comprising a support arranged to be clamped to the trame of 4the drill, a bar adjustabl connected to the support, a guide cli inged to the bar., an oil tank disposed a Ve the clip, an oil pipe connected to the tank and extending loosely through the clip, a supporting member rigidl and detachably connected'to the pipe an arranged to engage with a drill chuck, a valve in the pipe, and a nozzle carried by the pipe and arranged to be disposed against the drill bit.

2. An oiling device for a drilling machine comprislng a support'mounted on the machine, an oil reservoir, an oil conduit connected to the reservoir and leading the drill bit, means carried by the conduit Patented Sept. 29, 1914.

Q mime@ and resting on the drill chuek whereby the lnv testimony whereof, I a; my signax-eservor and conduit move with the drill ture, in the presence of two WItnesses.

bit, and movable means forming a art o the supportand slidably receiving t e con- HENRY DAVIS' r duit, whereby said conduit is ca able of Witnesses:

being moved toward and away rom the VICTOR BmLLoS, drill bit. LOUIS FELDMAN. 

